08.红外一体化接收头TSOP1838

TSOP18.. Vishay Telefunken 1 (7)Rev. 13, 13-Sep-00 www.vishay.comDocument Number 82047 Photo Modules for PCM Remote Control Systems Available types for different carrier frequencies Type fo Type fo TSOP1830 30 kHz TSOP1833 33 kHz TSOP1836 36 kHz TSOP1837 36.7 kHz TSOP1838 38 kHz TSOP1840 40 kHz TSOP1856 56 kHz Description The TSOP18.. – series are miniaturized receivers for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, the epoxy package is designed as IR filter. The demodulated output signal can directly be decoded by a microprocessor. The main benefit is the reliable function even in disturbed ambient and the protection against uncontrolled output pulses. 14 500 Features � Photo detector and preamplifier in one package � Internal filter for PCM frequency � TTL and CMOS compatibility � Output active low � Improved shielding against electrical field disturbance � Suitable burst length ≥6 cycles/burst Special Features � Small size package � Enhanced immunity against all kinds of disturbance light � No occurrence of disturbance pulses at the output � Short settling time after power on (<200�s) Block Diagram 9612226 PIN Input AGC Control Circuit Band Pass Demodu- lator 30 k� 2 3 1 VS OUT GND TSOP18.. Vishay Telefunken Rev. 13, 13-Sep-00 www.vishay.com Document Number 82047 2 (7) Absolute Maximum Ratings Tamb = 25�C Parameter Test Conditions Symbol Value Unit Supply Voltage (Pin 3) VS –0.3...6.0 V Supply Current (Pin 3) IS 5 mA Output Voltage (Pin 1) VO –0.3...6.0 V Output Current (Pin 1) IO 5 mA Junction Temperature Tj 100 �C Storage Temperature Range Tstg –25...+85 �C Operating Temperature Range Tamb –25...+85 �C Power Consumption (Tamb � 85 �C) Ptot 50 mW Soldering Temperature t � 10 s, 1 mm from case Tsd 260 �C Basic Characteristics Tamb = 25�C Parameter Test Conditions Symbol Min Typ Max Unit Supply Current (Pin 3) VS = 5 V, Ev = 0 ISD 0.9 1.2 1.5 mASupply Current (Pin 3) VS = 5 V, Ev = 40 klx, sunlight ISH 1.3 mA Supply Voltage (Pin 3) VS 4.5 5.5 V Transmission Distance Ev = 0, test signal see fig.6, IR diode TSAL6200, IF = 300 mA d 35 m Output Voltage Low (Pin 1) IOSL = 0.5 mA,Ee = 0.7 mW/m2, f = fo VOSL 250 mV Irradiance (30 – 40 kHz) Pulse width tolerance: tpi – 4/fo < tpo < E 0.3 0.5 mW/m2Irradiance (56 kHz) i o o tpi + 6/fo, test signal see fig.6 Ee min 0.4 0.7 mW/m 2 Irradiance Ee max 30 W/m2 Directivity Angle of half transmission distance ϕ1/2 ±45 deg Application Circuit 15905 TSAL62.. TSOP18.. 3 1 2 4.7 �F *) �C >10 k� optional 100 � *) +VS *) recommended to suppress power supply disturbances GND TSOP18.. Vishay Telefunken 3 (7)Rev. 13, 13-Sep-00 www.vishay.comDocument Number 82047 Suitable Data Format The circuit of the TSOP18.. is designed in that way that unexpected output pulses due to noise or disturbance signals are avoided. A bandpassfilter, an integrator stage and an automatic gain control are used to suppress such disturbances. The distinguishing mark between data signal ( not suppressed) and disturbance signal (supressed) are carrier frequency, burst length and Signal Gap Time (see diagram below). The data signal should fullfill the following condition: • Carrier frequency should be close to center fre- quency of the bandpass (e.g. 38kHz). • Burst length should be 6 cycles/burst or longer. • After each burst a gap time of at least 9 cycles is neccessary. • The data format should not make a continuous signal transmission. There must be a Signal Gap Time (longer than 15ms) at least each 90ms (see Figure A). Some examples for suitable data format are: NEC Code (repetitive pulse), NEC Code (repetitive data), Toshiba Micom Format, Sharp Code, RC5 Code, RECS–80 Code, R–2000 Code. When a disturbance signal is applied to the TSOP18.. it can still receive the data signal. However the sensitivity is reduced to that level that no unexpected pulses will occure. Some examples for such disturbance signals which are suppressed by the TSOP18.. are: • DC light (e.g. from tungsten bulb or sunlight), • Continuous signal at 38kHz or at any other frequency, • Signals from fluorescent lamps (see Figure B). • Continuous IR signal (e.g. 1ms burst, 2ms pause) 0 10 20 30 40 50 60 70 80 90 100 time [ms] Signal Gap Time Figure A: Data Signal (Output of IR Receiver) with a Signal Gap Time of 20ms 0 2 4 6 8 10 12 14 16 18 20 time [ms] Signal Gap Time Figure B: Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms TSOP18.. Vishay Telefunken Rev. 13, 13-Sep-00 www.vishay.com Document Number 82047 4 (7) Typical Characteristics (Tamb = 25�C unless otherwise specified) 0.7 0.8 0.9 1.0 1.1 E / E – R el . R es po ns iti vi ty e m in f / f0 – Relative Frequency 1.3 94 9102 0.0 0.2 0.4 0.6 0.8 1.0 e 1.2 f = f0�5% �f ( 3 dB ) = f0 / 7 Figure 1. Frequency Dependence of Responsivity 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0.01 0.10 1.00 10.00 100.00 E – DC Irradiance (W/m2)96 12214 e m in E – T hr es ho ld Ir ra di an ce (m W /m )2 Correlation with ambient light sources ( Disturbance effect ) : 1 0W/m2�1.4 klx ( Stand.illum.A, T = 2855 K )�8.2 klx ( Daylight, T = 5900 K ) Ambient, � = 950 nm Figure 2. Sensitivity in Bright Ambient 0.0 0.4 0.8 1.2 1.6 0.0 0.4 0.8 1.2 2.0 E – Field Strength of Disturbance ( kV / m ) 2.0 94 8147 1.6 E – Th re sh ol d Irr ad ia nc e ( m W /m ) e m in 2 f ( E ) = f0 Figure 3. Sensitivity vs. Electric Field Disturbances 0.1 1.0 10.0 100.0 0.1 1.0 10.0 100.0 1000.0 �Vs RMS – AC Voltage on DC Supply Voltage (mV)96 12215 e m in E – T hr es ho ld Ir ra di an ce (m W /m )2 f = fo 10 kHz 1 kHz 100 Hz Figure 4. Sensitivity vs. Supply Voltage Disturbances 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 VS – Supply Voltage ( V )14312 e m in E – T hr es ho ld Ir ra di an ce (m W /m )2 Sensitivity in dark ambient Figure 5. Sensitivity vs. Supply Voltage Ee t VO VOH VOL t 600 �s 600 �s Trep=100 ms Ton Toff 9612218 Optical Test Signal Output Signal, ( see Fig.7 ) TD* * Trep–TD > 15 ms is recommended for optimal function Figure 6. Output Function TSOP18.. Vishay Telefunken 5 (7)Rev. 13, 13-Sep-00 www.vishay.comDocument Number 82047 0.4 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.1 1.0 10.0 100.0 1000.0 10000.0100000.0 Ee – Irradiance (mW/m2)16163 o n o ff T , T – O ut pu t P ul se L en gt h (m s) Ton optical test signal, fig.6 Toff Figure 7. 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 –30 –15 0 15 30 45 60 75 90 Tamb – Ambient Temperature ( °C )14315 I – S up pl y Cu rre nt ( m A ) s Vs = 5 V Figure 8. Supply Current vs. Ambient Temperature 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 –30 –15 0 15 30 45 60 75 90 Tamb – Ambient Temperature ( °C )96 12221 e m in E – T hr es ho ld Ir ra di an ce (m W /m )2 Sensitivity in dark ambient Figure 9. Sensitivity vs. Ambient Temperature 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 VS – Supply Voltage ( V )14317 I – S up pl y Cu rre nt ( m A ) s Supply current in dark ambient Figure 10. Supply Current vs. Supply Voltage 750 850 950 1050 0 0.2 0.4 0.6 0.8 1.2 S ( ) – R ela tiv e S pe ctr al Se ns itiv ity re l � – Wavelength ( nm ) 1150 94 8408 1.0 � Figure 11. Relative Spectral Sensitivity vs. Wavelength 96 12223p2 0.4 0.2 0 0.2 0.4 0.60.6 0.9 0° 30° 10° 20° 40° 50° 60° 70° 80° 1.0 0.8 0.7 drel – Relative Transmission Distance Figure 12. Directivity TSOP18.. Vishay Telefunken Rev. 13, 13-Sep-00 www.vishay.com Document Number 82047 6 (7) Dimensions in mm 9612211 TSOP18.. Vishay Telefunken 7 (7)Rev. 13, 13-Sep-00 www.vishay.comDocument Number 82047 Ozone Depleting Substances Policy Statement It is the policy of Vishay Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Vishay-Telefunken products for any unintended or unauthorized application, the buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423